<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title></title>
		<style type="text/css">
			*{
				margin: 0;
				padding: 0;
			}
			p{
				color: red;
			}
			#p3{
				text-align: center;
			}
			.right{
				text-align: right;
			}
			.u{
				text-decoration: underline;
			}
			div.u{
				font-size: 32px;
			}
			
			.u.right{
				color: blue;
			}
		</style>
	</head>
	<body>
		<p>这是段落</p>
		<p>这是段落</p>
		<p id="p3">这是段落</p>
		<p class="right">这是段落</p>
		<p class="right u">这是段落</p>
		<div>这是div</div>
		<div>这是div</div>
		<div class="u">这是div</div>
		<div>这是div</div>
		<div>这是div</div>
	</body>
</html>
